------------[ cut here ]------------
WARNING: CPU: 0 PID: 29337 at arch/x86/mm/pat/memtype.c:1099 untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1099
Modules linked in:
CPU: 0 PID: 29337 Comm: syz-executor.5 Not tainted 5.18.0-rc7-syzkaller-00119-gb015dcd62b86 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:untrack_pfn+0x247/0x290 arch/x86/mm/pat/memtype.c:1099
Code: 84 6c ff ff ff e8 39 98 42 00 4c 89 ee 4c 89 e7 e8 ae dd ff ff e8 29 98 42 00 48 85 db 0f 85 58 ff ff ff eb 82 e8 19 98 42 00 <0f> 0b e9 76 ff ff ff 48 89 df e8 fa 28 8e 00 e9 98 fe ff ff e8 10
RSP: 0018:ffffc900154df710 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88807569bc60 RCX: ffffc90003421000
RDX: 0000000000040000 RSI: ffffffff8136a8d7 RDI: 0000000000000003
RBP: 1ffff92002a9bee2 R08: 0000000000000000 R09: ffffc900154df698
R10: ffffffff8136a7a6 R11: 0000000000000001 R12: 00000000ffffffea
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88807569bcb0
FS:  00007f7c03683700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3c06fa0000 CR3: 0000000074eb7000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 unmap_single_vma+0x1bc/0x310 mm/memory.c:1592
 unmap_vmas+0x16b/0x2f0 mm/memory.c:1645
 exit_mmap+0x1c4/0x4a0 mm/mmap.c:3140
 __mmput+0x122/0x4b0 kernel/fork.c:1184
 mmput+0x56/0x60 kernel/fork.c:1205
 dup_mm+0xd73/0x13d0 kernel/fork.c:1537
 copy_mm kernel/fork.c:1573 [inline]
 copy_process+0x3b14/0x6fe0 kernel/fork.c:2234
 kernel_clone+0xe7/0xab0 kernel/fork.c:2639
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2756
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7c024890e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c03683118 EFLAGS: 00000286 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f7c0259bf60 RCX: 00007f7c024890e9
RDX: 0000000020000040 RSI: 0000000000000000 RDI: c6a91a1a0810242b
RBP: 00007f7c036831d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000002
R13: 00007ffc8ee45c0f R14: 00007f7c03683300 R15: 0000000000022000
 </TASK>